public class E2_1 {
    int m = 1;
    static float x;                 //A
    class InnerClass {
        int m = 12;                 //B
        static float n = 20.89f;    //C
        InnerClass(){
        }
        void f() {
            m = 100;
        }
    }
    void cry() {
        InnerClass tom = new InnerClass();//D
    }
}
